Method for producing reinforced glass sheet, glass sheet for reinforcing, and reinforced glass sheet

This method for producing a reinforced glass sheet includes reinforcing a glass sheet by means of an ion exchange method. The method for producing a reinforced glass sheet is characterized by the following: including a film formation step of forming an ion permeation prevention film that prevents ion exchange on a part of a surface of a glass sheet, and a selective ion exchange step of bringing the film-bearing glass sheet into contact with a molten salt bath so as to selectively subject regions other than the film-bearing region to ion exchange; and in that the ion permeation prevention film is an inorganic film containing 50-100 mass% of ZrO 2 .